Typical evaluation scope
Rheology modification in cement-, gypsum- and lime-based mortars.
Functional additive for dry-mix mortar
Hydroxypropyl Starch Ether (HPS)
Hydroxypropyl starch ether is used in selected cement- and gypsum-based dry-mix formulations to modify workability and application behavior. Confirm compatibility and dosage through formulation trials.
Powder formCement & gypsum systemsWater soluble
Product role
Where this product fits
Hydroxypropyl starch ether is used in selected cement- and gypsum-based dry-mix formulations to modify workability and application behavior. Confirm compatibility and dosage through formulation trials.
Important: evaluate compatibility and performance in the buyer's own materials and process before commercial use.
Technical overview
Indicative product information
| Property | Indicative value |
|---|---|
| Appearance | White to yellow powder |
| Moisture | ≤ 10% |
| pH, 5% solution | 7.0–9.0 |
| Viscosity, 5% solution | 500–1200 mPa·s |
| Solubility | Soluble in water |
Values shown are retained from the available source material and are indicative only. Request the current TDS/specification for purchasing decisions.
Inquiry checklist
What to send with your request
01 · Application
Cement or gypsum mortar and existing cellulose ether.
02 · Target
Required grade and performance objective.
03 · Quantity
Sample, trial or estimated order volume.
04 · Destination
Country, port and packaging needs.
Buyer-oriented technical selection
HPS grade selection
Factors that change performance
Viscosity, dosage, cellulose-ether combination, sag resistance and workability target.
Recommended verification
Hps is commonly evaluated with the intended hpmc/hemc grade rather than as an isolated ingredient.
Documents and evidence
Ask for the current grade specification and batch documentation. Review available company certificates, test evidence and supplier batch-report scope separately.
Quality-control calculation
Calculate wet-basis and dry-basis moisture from sample weights.
Grade-specific buying brief
Specify HPS as a distinct mortar ingredient
An HPS inquiry should identify the mortar binder, existing cellulose ether and the workability or sag problem being addressed. Do not treat starch ether as the same product as HPMC. Compare the proposed combination in the finished mortar, with the required application and hardened-property checks defined by the formulation team.
The viscosity reference on this page uses a five-percent solution. Results published at another concentration, temperature or instrument setting are not directly interchangeable. Request the full method and current grade limits for pH, moisture and viscosity. Values from another HPS manufacturer may describe a different grade and do not revise this catalogue specification.
Details for a matched sample and quotation
- Application: cement/gypsum system and required application behavior
- Existing package: cellulose ether and other functional additives
- Inspection: solution concentration, viscosity method and pH method
- Supply: current TDS/SDS, COA, sample and moisture-resistant packaging